Applying Domain‑Driven Design to Build Maintainable and Scalable Backend Architecture
This article explains how the increasing complexity of business logic in modern backend systems leads to tangled code, and demonstrates how strategic and tactical Domain‑Driven Design (DDD) concepts—such as bounded contexts, aggregates, entities, value objects, repositories, and application services—can decouple business and technology, improve maintainability, extensibility, and stability, and guide practical layered architecture implementation.